[LC] KtLightElementBase: textRange and textOffset should return only real values

It is up to clients to decide how to properly manage elements without
ranges. With the previous implementation there was no way to
detect such a situation.

^KT-70001 Fixed

Author: dimonchik0036

analysis/light-classes-base/src/org/jetbrains/kotlin/asJava/elements/KtLightElementBase.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -24,9 +24,9 @@ abstract class KtLightElementBase(private var parent: PsiElement) : LightElement
     }
 
     override fun getText() = kotlinOrigin?.text ?: ""
-    override fun getTextRange() = kotlinOrigin?.textRange ?: TextRange.EMPTY_RANGE
-    override fun getTextOffset() = kotlinOrigin?.textOffset ?: 0
-    override fun getStartOffsetInParent() = kotlinOrigin?.startOffsetInParent ?: 0
+    override fun getTextRange(): TextRange? = kotlinOrigin?.textRange
+    override fun getTextOffset(): Int = kotlinOrigin?.textOffset ?: -1
+    override fun getStartOffsetInParent(): Int = kotlinOrigin?.startOffsetInParent ?: -1
     override fun isWritable() = kotlinOrigin?.isWritable ?: false
     override fun getNavigationElement() = kotlinOrigin?.navigationElement ?: this
     override fun getUseScope() = kotlinOrigin?.useScope ?: super.getUseScope()

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/methods/SymbolLightAccessorMethod.kt

@@ -371,7 +371,7 @@ internal class SymbolLightAccessorMethod private constructor(
         return lightMemberOrigin?.auxiliaryOriginalElement?.textOffset ?: super.getTextOffset()
     }
 
-    override fun getTextRange(): TextRange {
+    override fun getTextRange(): TextRange? {
         return lightMemberOrigin?.auxiliaryOriginalElement?.textRange ?: super.getTextRange()
     }
 

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/modifierLists/SymbolLightMemberModifierList.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -54,7 +54,7 @@ internal class SymbolLightMemberModifierList<T : KtLightMember<*>>(
             ?: super.getTextOffset()
     }
 
-    override fun getTextRange(): TextRange {
+    override fun getTextRange(): TextRange? {
         return getTextVariantFromModifierListOfPropertyAccessorIfNeeded(KtModifierList::getTextRange)
             ?: super.getTextRange()
     }

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/ultraLightMethods.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -75,7 +75,7 @@ private class KtUltraLightMethodModifierList(
             ?: super.getTextOffset()
     }
 
-    override fun getTextRange(): TextRange {
+    override fun getTextRange(): TextRange? {
         return getTextVariantFromModifierListOfPropertyAccessorIfNeeded(KtModifierList::getTextRange)
             ?: super.getTextRange()
     }

compiler/light-classes/src/org/jetbrains/kotlin/asJava/elements/KtLightMethodImpl.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -10,15 +10,18 @@ import com.intellij.psi.*
 import com.intellij.psi.scope.PsiScopeProcessor
 import com.intellij.psi.util.MethodSignature
 import com.intellij.psi.util.MethodSignatureBackedByPsiMethod
-import org.jetbrains.kotlin.asJava.*
 import org.jetbrains.kotlin.asJava.builder.LightMemberOriginForDeclaration
 import org.jetbrains.kotlin.asJava.checkIsMangled
 import org.jetbrains.kotlin.asJava.classes.KtLightClass
 import org.jetbrains.kotlin.asJava.classes.cannotModify
 import org.jetbrains.kotlin.asJava.classes.lazyPub
+import org.jetbrains.kotlin.asJava.demangleInternalName
+import org.jetbrains.kotlin.asJava.propertyNameByAccessor
 import org.jetbrains.kotlin.asJava.unwrapped
 import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil
-import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.psi.KtAnnotationEntry
+import org.jetbrains.kotlin.psi.KtPropertyAccessor
+import org.jetbrains.kotlin.psi.KtPsiFactory
 
 abstract class KtLightMethodImpl protected constructor(
     lightMemberOrigin: LightMemberOriginForDeclaration?,
@@ -141,7 +144,7 @@ abstract class KtLightMethodImpl protected constructor(
             ?: super.getTextOffset()
     }
 
-    override fun getTextRange(): TextRange {
+    override fun getTextRange(): TextRange? {
         return getTextVariantFromPropertyAccessorIfNeeded(KtPropertyAccessor::getTextRange)
             ?: super.getTextRange()
     }